ATE94950T1 - METHOD AND DEVICE FOR MAINTAINING THE EFFICIENCY OF A CATALYTIC BED IN AN ENGINE. - Google Patents

METHOD AND DEVICE FOR MAINTAINING THE EFFICIENCY OF A CATALYTIC BED IN AN ENGINE.

Info

Publication number
ATE94950T1
ATE94950T1 AT90403013T AT90403013T ATE94950T1 AT E94950 T1 ATE94950 T1 AT E94950T1 AT 90403013 T AT90403013 T AT 90403013T AT 90403013 T AT90403013 T AT 90403013T AT E94950 T1 ATE94950 T1 AT E94950T1
Authority
AT
Austria
Prior art keywords
catalytic bed
engine
maintaining
efficiency
impurities
Prior art date
Application number
AT90403013T
Other languages
German (de)
Inventor
Jean Jacques Runavot
Original Assignee
Centre Nat Etd Spatiales
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Centre Nat Etd Spatiales filed Critical Centre Nat Etd Spatiales
Application granted granted Critical
Publication of ATE94950T1 publication Critical patent/ATE94950T1/en

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02K—JET-PROPULSION PLANTS
    • F02K9/00—Rocket-engine plants, i.e. plants carrying both fuel and oxidant therefor; Control thereof
    • F02K9/42—Rocket-engine plants, i.e. plants carrying both fuel and oxidant therefor; Control thereof using liquid or gaseous propellants
    • F02K9/60—Constructional parts; Details not otherwise provided for
    • F02K9/68—Decomposition chambers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02K—JET-PROPULSION PLANTS
    • F02K9/00—Rocket-engine plants, i.e. plants carrying both fuel and oxidant therefor; Control thereof
    • F02K9/42—Rocket-engine plants, i.e. plants carrying both fuel and oxidant therefor; Control thereof using liquid or gaseous propellants
    • F02K9/44—Feeding propellants
    • F02K9/56—Control

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Catalysts (AREA)
  • Exhaust Gas After Treatment (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)
  • Spray-Type Burners (AREA)

Abstract

Method and device for protecting a catalytic bed (4) from deterioration due to the impurities in a propellant fuel. <??>The method consists, by briefly and periodically interrupting the supply of fuel by means of the solenoid valve (1), in creating abrupt pressure oscillations in the injection chamber (3) which expel the impurities in the pasty or possibly solid state towards the nozzle (6). <??>Application to space vehicles. <IMAGE>
AT90403013T 1989-10-27 1990-10-25 METHOD AND DEVICE FOR MAINTAINING THE EFFICIENCY OF A CATALYTIC BED IN AN ENGINE. ATE94950T1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8914146A FR2653828B1 (en) 1989-10-27 1989-10-27 METHOD AND DEVICE FOR PROTECTING A CATALYTIC BED OF PROPELLER TRAVELED BY A FUEL FROM DEGRADATION.
EP90403013A EP0425384B1 (en) 1989-10-27 1990-10-25 Method and device to protect the catalytic bed of a thruster from degradation

Publications (1)

Publication Number Publication Date
ATE94950T1 true ATE94950T1 (en) 1993-10-15

Family

ID=9386871

Family Applications (1)

Application Number Title Priority Date Filing Date
AT90403013T ATE94950T1 (en) 1989-10-27 1990-10-25 METHOD AND DEVICE FOR MAINTAINING THE EFFICIENCY OF A CATALYTIC BED IN AN ENGINE.

Country Status (7)

Country Link
US (1) US5117627A (en)
EP (1) EP0425384B1 (en)
JP (1) JP2994450B2 (en)
AT (1) ATE94950T1 (en)
DE (1) DE69003509T2 (en)
ES (1) ES2045857T3 (en)
FR (1) FR2653828B1 (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5746050A (en) * 1996-01-19 1998-05-05 Primex Technologies, Inc. Gaseous product delivery system
US6272846B1 (en) 1999-04-14 2001-08-14 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration Reduced toxicity fuel satellite propulsion system
US6807805B2 (en) * 2003-03-11 2004-10-26 United Technologies Corporation Hypergolic fuel system
US7757476B2 (en) * 2003-07-22 2010-07-20 The Aerospace Corporation Catalytically activated transient decomposition propulsion system
US7302792B2 (en) * 2003-10-16 2007-12-04 The Johns Hopkins University Pulsed plasma thruster and method of making
US20080264372A1 (en) * 2007-03-19 2008-10-30 Sisk David B Two-stage ignition system
US8024918B2 (en) * 2008-04-29 2011-09-27 Honeywell International Inc. Rocket motor having a catalytic hydroxylammonium (HAN) decomposer and method for combusting the decomposed HAN-based propellant
CN103662093B (en) * 2013-12-20 2015-08-19 北京控制工程研究所 A kind of orifice plate assembly for double elements thruster
DE102014011101A1 (en) * 2014-07-24 2016-01-28 Astrium Gmbh Injection element for a rocket combustion chamber

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3373769A (en) * 1966-11-02 1968-03-19 Moog Inc Valve for controlling simultaneously the flow of two separate fluids
FR2399868A1 (en) * 1977-08-10 1979-03-09 United Air Specialists Self-cleaning electrostatic precipitator - cleaned by variable frequency vibrations produced by tank of compressed air
US4324096A (en) * 1979-04-23 1982-04-13 Hughes Aircraft Company Hydrazine thruster
JPS5892729A (en) * 1981-11-25 1983-06-02 Toshiba Corp Gas turbine combustor
US4517798A (en) * 1983-05-31 1985-05-21 The United States Of America As Represented By The Secretary Of The Army Porous catalytic metal plate degeneration bed in a gas generator
US4825647A (en) * 1983-07-26 1989-05-02 Technion, Inc. Performance improvements in thruster assembly
US4730449A (en) * 1983-07-26 1988-03-15 Technion, Inc. Radiation transfer thrusters for low thrust applications
US4930310A (en) * 1985-12-18 1990-06-05 Rockcor, Inc. Monopropellant plenum propulsion system with integrated valve/nozzle for fast response thrust
US4766724A (en) * 1987-06-10 1988-08-30 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration Arcjet power supply and start circuit

Also Published As

Publication number Publication date
EP0425384A1 (en) 1991-05-02
FR2653828A1 (en) 1991-05-03
EP0425384B1 (en) 1993-09-22
DE69003509D1 (en) 1993-10-28
JP2994450B2 (en) 1999-12-27
JPH03151547A (en) 1991-06-27
US5117627A (en) 1992-06-02
DE69003509T2 (en) 1994-03-31
FR2653828B1 (en) 1992-02-07
ES2045857T3 (en) 1994-01-16

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Legal Events

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